1.

To orient a plane table at a point roughly south of the mid-point of two inaccessible conical hill stations and in the plains, a point is selected in line with and table is oriented at by bringing in line with . ray is then drawn towards and at the table is oriented by back ray method. The orientation so obtained, is

A. unique and correct
B. incorrect
C. manifold and correct
D. not reliable.
Answer» D. not reliable.


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